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13-36 User’s Reference Guide
EE
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Incoming packet has the source address of 200.1.1.28
This incoming IP packet has a source IP address that matches the network address in the Source IP Address
field (00000000) in the Netopia R5000 Series Router. This will not forward this packet.
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22
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Incoming packet has the source address of 200.1.1.184.
Filter Rule: 200.1.1.0 (Source IP Network Address)
255.255.255.128 (Source IP Mask)
Forward = No (What happens on match)
IP Address Binary Representation
200.1.1.28 00011100 (Source address in incoming IP packet)
AND
255.255.255.128 10000000 (Perform the logical AND)
00000000 (Logical AND result)
Filter Rule: 200.1.1.0 (Source IP Network Address)
255.255.255.128 (Source IP Mask)
Forward = No (What happens on match)
IP Address Binary Representation
200.1.1.184 10111000 (Source address in incoming IP packet)
AND
255.255.255.128 10000000 (Perform the logical AND)
10000000 (Logical AND result)